GHSA-456r-qjr2-xph9HighCVSS 7.5
Net::IP::LPM versions before 1.12 for Perl accept malformed prefix lengths. Non-numeric and non...
🔗 CVE IDs covered (1)
📋 Description
Net::IP::LPM versions before 1.12 for Perl accept malformed prefix lengths.
Non-numeric and non-ASCII prefix lengths are accepted and treated as 0. Integers over 31 bits are silently truncated. A single malformed mask will poison the lookup table.
The result is that the lookup will silently succeed for every address. An allow-list will allow every address, and a deny-list will block every address.
🔗 References (5)
- https://nvd.nist.gov/vuln/detail/CVE-2026-86287
- https://github.com/robrwo/perl-Net-IP-LPM/commit/814f8baa85537827db8c3b3d251e48db7aca318f.patch
- https://metacpan.org/release/RRWO/Net-IP-LPM-1.12/changes
- http://www.openwall.com/lists/oss-security/2026/09/07/1
- https://github.com/advisories/GHSA-456r-qjr2-xph9